Screensavers have come a long way, baby. The cathode-ray-tube-saving software enhancements have evolved by leaps and bounds since the pre-Pentium days of flying toasters. And though they might seem like a low-tech choice for getting film fare out of Hollywood and onto your desktop, there’s a site entirely devoted to Matrix screensavers (17 of them, available at matrixnow.fanspace.com). In fact, studios, ever on the cutting edge, are taking full advantage of interactive screensavers as marketing tools. Says Dwight Caines, Sony Pictures’ VP of Internet marketing strategy, ”It’s all about broadening the reach and providing multiple access points to get to our content.” The good news: Products like the Eyetide Viewer (eyetide.com) automatically download fresh images from the Net. The bad: You might end up with an image of Charlie’s Angels‘ Bill Murray blowing a horn (right) in your screensaver rotation. Eek.